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Unified Diff: content/test/data/gpu/pixel_offscreenCanvas_resize.html

Issue 2521013003: Compositing Layer update for OffscreenCanvas resize (Closed)
Patch Set: test Created 4 years, 1 month ago
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Index: content/test/data/gpu/pixel_offscreenCanvas_resize.html
diff --git a/content/test/data/gpu/pixel_offscreenCanvas_resize.html b/content/test/data/gpu/pixel_offscreenCanvas_resize.html
new file mode 100644
index 0000000000000000000000000000000000000000..4e7e733062521e46d95badb13971b8c47ea39c57
--- /dev/null
+++ b/content/test/data/gpu/pixel_offscreenCanvas_resize.html
@@ -0,0 +1,74 @@
+<!DOCTYPE HTML>
+
+<!-- READ BEFORE UPDATING:
+If this test is updated make sure to increment the "revision" value of the
+associated test in content/test/gpu/page_sets/pixel_tests.py. This will ensure
+that the baseline images are regenerated on the next run.
+-->
+
+<html>
+<head>
+<title>OffscreenCanvas commit flow With Resize: Blue Rectangle on white background.</title>
+<style type="text/css">
+.nomargin {
+ margin: 0px auto;
+}
+</style>
+<script id="myWorker" type="text/worker">
+self.onmessage = function(e) {
+ var transferredCanvas = e.data;
+ var offscreen2d = transferredCanvas.getContext("2d");
+ offscreen2d.fillStyle = "blue";
+ offscreen2d.fillRect(0, 0, 200, 200);
+ offscreen2d.commit();
+
+ // Change the size of offscreenCanvas from 200X200 to 100X300
+ transferredCanvas.width = 100;
+ transferredCanvas.height = 300;
+ offscreen2d.fillStyle = "blue";
+ offscreen2d.fillRect(0, 0, 200, 200);
+ offscreen2d.commit();
+ self.postMessage("");
+};
+</script>
+<script>
+var g_swapsBeforeAck = 15;
+
+function makeWorker(script)
+{
+ var blob = new Blob([script]);
+ return new Worker(URL.createObjectURL(blob));
+}
+
+function waitForFinish()
+{
+ if (g_swapsBeforeAck == 0) {
+ domAutomationController.setAutomationId(1);
+ domAutomationController.send("SUCCESS");
+ } else {
+ g_swapsBeforeAck--;
+ document.getElementById('container').style.zIndex = g_swapsBeforeAck + 1;
+ window.webkitRequestAnimationFrame(waitForFinish);
+ }
+}
+
+function main()
+{
+ var canvas2D = document.getElementById("c");
+ var offscreenCanvas = canvas2D.transferControlToOffscreen();
+ var worker = makeWorker(document.getElementById("myWorker").textContent);
+ worker.postMessage(offscreenCanvas, [offscreenCanvas]);
+ worker.onmessage = function (e) {
+ waitForFinish();
+ };
+}
+</script>
+</head>
+<body onload="main()">
+<div style="position:relative; width:300px; height:300px; background-color:white">
+</div>
+<div id="container" style="position:absolute; top:0px; left:0px">
+<canvas id="c" width="200" height="200" class="nomargin"></canvas>
+</div>
+</body>
+</html>

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